My father is obviously (to me) PG. He's an insane autodidact who knows everything about everything (he can fix your car, plumb your house, teach you physics, lecture on the fall of Rome, and recite romantic poets at length at the drop of a hat) and has published articles in journals in fields not even his own. Unfortunately, his gifts and feelings of being misunderstood probably contributed to some of his issues. So, those genes are out there in the family.